JP2000167837A - Crushing device for synthetic resin material laminate - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce noises generated when atmosphere is introduced from an atmosphere introduction inlet into a drum of a separating and sorting device for a synthetic resin material laminate. SOLUTION: When air in a drum 3 of a separating and sorting device is sucked by a suction means, crushed cushioning materials and residual skin materials are discharged together with air to the outside of the drum 3, and simultaneously the interior of the drum 3 is ventilated and cooled by air introduced from an atmosphere introduction inlet 32 formed on a hopper 29. A sound- damping duct 61 with its inner face covered with a sound absorbing material is set on the hopper 29, and when atmosphere is introduced into the drum 3 through the sound-damping duct 61 and a hopper 62 while the suction means is actuated, the generation of noises is prevented by the sound-damping effect of the sound-damping duct 61. The sound-absorbing material of the sound- damping duct 61 is formed of a glass wool covered with a glass cloth.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a synthetic resin laminate crushing apparatus for separating and separating a synthetic resin skin material and a synthetic resin cushion material which are joined to each other to form a synthetic resin laminate. .

[0002]

2. Description of the Related Art In recent years, there has been a strong demand for reuse of synthetic resin laminates, which are used as interior materials for automobiles and the like and are made by joining a synthetic resin skin material and a synthetic resin cushion material, For reuse, it is necessary to first separate and separate the synthetic resin laminate into a skin material and a cushion material.

[0003] In order to meet the demand, the present applicant has already established a drum and an annular sieve member disposed within the drum to define a separation chamber between the drum and an inner peripheral surface thereof. A rotating plate disposed concentrically within the sieve member, a rubbing member fixed to the rotating plate and facing the inner peripheral surface of the sieve member with a predetermined gap therebetween, and driving the rotating plate to rotate. A driving means for crushing the cushion member of each piece by passing the sieve member while crushing the cushion material of each piece by rubbing the fragments of the synthetic resin material laminate put into the sieve member with the rubbing member. Japanese Patent Application No. 9-206780 proposes a separation / separation apparatus for a synthetic resin material laminate, which is received in the separation chamber.

According to the above apparatus, the cushion material of each fragment is crushed while the skin material of each fragment remains in the sieve member.
The synthetic resin material laminate can be automatically and efficiently separated and separated into a skin material and a cushion material by being peeled and passed through a sieve member and received in a separation chamber.

[0005]

However, the above-mentioned prior art uses a blower to suck the air in the drum,
The inside of the drum is ventilated to suppress the rise in the internal temperature, and the separated skin material and cushion material are discharged to the outside. There was a problem that a loud air noise was generated when outside air was introduced into the inside.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has been made to reduce noise generated when external air is introduced from an external air intake port into a drum of a crusher for a synthetic resin laminate. Aim.

[0007]

In order to achieve the above object, the present invention is directed to a drum and a group of fragments of a synthetic resin laminate which is rotated in the drum and fed into the drum. A crushing device for a synthetic resin laminate, comprising: a rotating member, a suction means for sucking air in a drum, and an outside air intake for introducing outside air into the drum, wherein the sound absorbing material is covered on the inner surface. A first feature is that a duct is connected to the outside air intake.

According to the first feature, when the air in the drum is sucked by the suction means, the crushed pieces are discharged to the outside of the drum together with the air, and at the same time, the inside of the drum is introduced by the outside air introduced from the outside air intake. Ventilated and cooled. Since the outside air passes through the silencing duct covering the inner surface with the sound absorbing material and is introduced into the drum from the outside air intake, noise is prevented by the silencing effect of the silencing duct.

Further, the present invention provides, in addition to the first feature,
A second feature is that the sound deadening duct is bent in a maze shape.

According to the second feature, the noise reduction effect can be further enhanced by bending the noise reduction duct in a maze shape.

Further, the present invention provides, in addition to the first feature,
A third feature is that the sound deadening duct is fixed to the drum via a vibration isolator. According to the third feature, since the sound deadening duct is fixed to the drum via the vibration-proof material, it is possible to prevent noise due to the vibration of the sound deadening duct.

[0012]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below based on embodiments of the present invention shown in the accompanying drawings.

FIGS. 1 to 16 show a first embodiment of the present invention. FIG. 1 is a side view of an apparatus for separating and separating synthetic resin laminates, and FIG. FIG. 3 is a sectional view taken along line 3-3 of FIG. 1, and FIG.
5, FIG. 5 is an enlarged sectional view taken along line 5-5 in FIG. 1 (supply chute), FIG. 6 is a view in the direction of arrow 6 in FIG. 5, FIG. 7 is a view corresponding to FIG. Is a view in the direction of arrow 8 in FIG. 7,
9 is an enlarged view taken along line 9-9 of FIG. 3, and FIG.
FIG. 11 is an enlarged view of a part 11 of FIG. 10, FIG.
2 is an enlarged view of 12 part of FIG. 3, FIG. 13 is an enlarged view of a main part of FIG. 4,
FIG. 14 is a developed inner view of the sieve member, and FIG.
FIG. 16 is a sectional view taken along a line 15 and FIG. 16 is an explanatory view of a separation and separation process of a synthetic resin material laminate.

In FIG. 16, a synthetic resin material laminate A as an interior material of an automobile which has been scrapped is made of, for example, PVC, ABS,
It is made by bonding or fusing a skin material a made of PP (polypropylene) or the like and a cushion material b made of polyurethane foam, PP foam, PE (polyethylene) foam or the like. Before the operation, the laminate A is crushed to obtain an infinite number of 3 to 6 mm square laminate A fragments. Next, these laminate A fragments are stored in a storage tank 30 as shown in FIG. 1 and FIG. 2, and are applied to an appropriate amount separating / sorting device 1 to be separated into skin material a fragments and cushion material b powder. Together with it.

1 to 15, a separation / separation apparatus 1
Will be described.

First, in FIGS. 3 and 4, a machine drum 2 of this separation / separation apparatus 1 has a cylindrical drum 3 whose axis is horizontal, and an electric motor 4 whose rotor shaft 4a is parallel to the axis. Drive means). The drum 3 has a cylinder 5 having a pair of inward flanges 5a and 5b at both left and right ends.
And an end plate 6 fixed to the right flange 5b to close the right end face of the cylinder 5 and a hinge 18 to the left flange 5a.
And a door 7 which is connected through the door to open and close the left end surface of the cylinder 5. The drum 3 is fixed to the machine base 2 and the door 7
Is normally kept in a closed state by a clamp 19 provided on the drum 3.

As shown in FIGS. 3 and 12, the drum 3 is provided with an annular sieve unit 8. This sieve unit 8
Is provided with an annular sieve member 9, a pair of left and right ring bodies 10a and 10b engaged with both ends of the sieve member 9, and a reinforcing ring 11 fitted on the outer periphery of a central portion of the sieve member 9 in the axial direction. The ring bodies 10a, 10b and the reinforcing ring 11 are integrally connected by a number of bolts 13 via a number of distance collars 12 arranged in the circumferential direction on the outer peripheral side of the sieve member 9. When the sieve unit 8 is mounted on the drum 3, the left and right ring bodies 1
0 a and 10 b are fitted to the inner circumference of the left and right flanges 5 a and 5 b of the cylinder 5. In order to prevent the rotation of the sieve unit 8, a positioning pin 14 protruding from the outer surface of the right ring body 10b is fitted into a positioning hole 15 provided in the inner surface of the end plate 6. . Thus, an annular separation chamber 17 is defined between the inner peripheral surface of the cylinder 5 of the drum 3 and the sieve member 9.

As shown in FIGS. 13 to 15, the sieve member 9 has a circular mesh 9
a is formed innumerably, and each mesh 9a has an edge 26 protruding radially inward of the sieve member 9 over the entire periphery thereof. The meshes 9a are arranged in a zigzag shape along the rotation direction R of the sieve member 9, and
Are set to be equal to or smaller than the inner diameter D of the mesh 9a.

Referring again to FIGS. 3 and 4, in the drum 3, a rotary plate 20 adjacent to the inner surface of the end plate 6 is disposed concentrically with the drum 3. On the periphery of the rotating plate 20,
A plurality (four in the illustrated example) of rubbing members 2 arranged at equal intervals
1 is fixed by a bolt 31. A rotating shaft 22 supporting the rotating plate 20 passes through the end plate 6 in a gas-tight manner and is supported by a bearing 23 on the machine base 2. The rotating shaft 22 is connected to a rotor shaft 4 a of the electric motor 4 by a belt transmission device 24. Are connected via. Therefore, the rotation of the rotating plate 2
The rotation of the rubbing member 21 can be achieved via the zero.
The rubbing member 21 constitutes the rotating member of the present invention.

As shown in FIG. 13, each rubbing member 21
A handle 21a which is directly fixed to the rotating plate 20 with bolts 31 and extends radially outward, and which is integrally formed at the tip of the handle 21a and faces the inner peripheral surface of the sieve member 9 in its axial direction. And a spatula portion 21b extending to the left. Spatula 21b
Has a radially outer surface f ₁ which faces to exist a predetermined gap 25 inner peripheral surface of the sieve member 9 to over its entire width, therewith a radially inner surface f ₂ of the half-body side. Its outer surface f ₁
Is inclined radially outward toward the rear in the rotation direction R of the rubbing member 21, and its inner surface f ₂ is
The whole is inclined radially inward toward the rear in the rotation direction R, and the cross section of the spatula 21b is formed in a wedge shape. Each corner of the spatula 21b is rounded.

As shown in FIG. 3 and FIG. 4, an input port 28 is provided at the center of the door 7 for inputting the laminate A fragments into the inside of the drum 3, and a hopper 29 is provided in the input port 28. Connected. Screens 3 on the left and right sides of hopper 29
3 is provided with a pair of outside air intakes 32 in which
A pair of left and right sound deadening ducts 61 are provided so as to cover the outside air intakes 32. Further, the door 7 has a transparent lid 2
A viewing window 27 closed by 7a is provided.

As is clear from FIGS. 9 to 11, the silencing duct 61 having a rectangular cross section made of steel plate has an L-shape as a whole, and has an inlet opening 61 ₁ at its upper end.
There is formed an outlet opening 61 ₂ communicating with the outside air intake port 32 of the hopper 29 to the semicircular cross section of the mounting bracket 62 which is secured at its lower end is formed. The left and right sound deadening ducts 61 are abutted such that their mounting brackets 62 are wound around the outer periphery of the hopper 29, and are supported by the hopper 29 by integrally fastening a pair of mounting brackets 62 facing each other with bolts 63. You. In this state, the outlet opening 61 ₂ in the left and right muffler duct 61, respectively facing the outside of the screen 33 is stretched to the right and left outside air inlet 32 of the hopper 29. The inner wall surface of the sound deadening duct 61 has a sound absorbing material 6 in which the outside of a glass wool 64 is covered with a glass cloth 65.
6.

As shown in FIG. 1, a fixed-rate supply device 50 is connected to the hopper 29 via a conduit 51. The fixed quantity supply device 50 is composed of a fixed quantity tank 52 for receiving a certain amount of the stacked A pieces and a vibration feeder 53 for sending the received stacked pieces to the hopper 29. A quantitative sensor 54 is provided for detecting that the number of laminated fragments reaches a specified amount. The storage tank 30 for storing the laminate A fragments is connected to the fixed quantity tank 52 via a supply duct 55. An electric pump 56 is provided at the bottom of the storage tank 30 so that the laminate A fragments in the storage tank 30 can be supplied to the fixed quantity tank 52 by the operation thereof. When the amount reaches a specified amount, the operation of the electric pump 56 is stopped and the vibration feeder 53 is operated by a detection signal output from the quantitative sensor 54.

At the upper end of the hopper 29, a roughly funnel-shaped supply chute 57 is detachably mounted. Supply chute 5
Reference numeral 7 denotes a side wall portion 57a having a notch into which the conduit 51 of the vibration feeder 53 is fitted, a frusto-conical chute main body portion 57b continuously provided below the side wall portion 57a and having a diameter decreasing downward. An annular mounting portion 57c is fixed to the chute main body 57b. The mounting portion 57c is fitted to the upper end of the hopper 29 and is fixed with a single bolt 58.

Instead of the supply chute 57, the hopper 2
The measuring chute 59 detachably attached to the upper end of the
A trough-shaped chute main body 59a that is obliquely inclined, a support portion 59b that supports the chute main body 59a, and an annular mounting portion 59c for fixing the support portion 59b to the upper end of the hopper 29 with the bolt 58. Consists of
The conduit 51 of the vibrating feeder 53 faces the upper end of the chute main body 59a with the weighing chute 59 fixed to the upper end of the hopper 29 via the mounting portion 59c.

At the lower end of the measuring chute 59, a support 81
The tray 83 of the weighing scale 82 supported above faces.
The laminate A fragments supplied from the vibration feeder 53 are supplied to the tray 83 of the weighing scale 82 via the measuring chute 59.

As shown in FIGS. 2 and 4, the cylinder 5 of the drum 3 has first to third discharge ports 35 _{1 to} 35 ₃ which open to the separation chamber 17 at the upper part, the middle part and the lower part, respectively. Provided. Although the first and second discharge ports 35 _1, 35 ₂ are formed in the same size, the third discharge port 35 ₃ of the lower part,
It is formed larger than the _two outlets 35 ₁ and 35 ₂ . These three outlets 35 _{1 to} 35 ₃ are the first outlet pipe 3
6 is connected ₁ to the first cyclone 37 ₁ via a first electric blower 3 as suction means in the middle of the first discharge pipe 36 ₁
8 ₁ are provided.

On the other hand, the lower portion of the sieve unit 8, the third discharge port 35 _3, it is smaller than the fourth outlet port 35 ₄
Is provided so as to open inside the sieve member 9.
The second exhaust pipe 36 ₂ connected to the outlet 35 ₄ is connected to the middle through the first side wall of the exhaust pipe 36 ₁ second cyclone 37 _2. Second electric blower 38 _{and second} as a suction means is provided in the second exhaust pipe 36 _2.

The first and second cyclones 37 ₁ , 37
_2, an exhaust port 41 having a filter 40 at the top, has an outlet 42 respectively at the bottom, first and second tank 43 _1, 43 ₂ are disposed respectively beneath these outlet 42.

The fourth discharge port 35 ₄ is opened and closed by a shutter 45. The shutter 45 has a pivot 45 a rotatably supported by a bracket 46 provided on the drum 3. A lever 47 fixed to the pivot 45 a
The operating rod 48a of the air cylinder 48 provided below the drum 3 is connected. Therefore, the shutter 45 can be opened and closed by the operation of the air cylinder 48.

Next, the operation of this embodiment will be described.

In using the separation and separation apparatus 1 of the present invention, first, the electric pump 56 is operated to supply the laminate A fragments in the storage tank 30 to the fixed quantity tank 52. When the amount received in the fixed amount tank 52 reaches a specified amount, the fixed amount sensor 54
Generates a detection signal, stops the electric motor 4 and activates the vibration feeder 53, so that a predetermined amount of the laminate A debris in the fixed quantity tank 52 is automatically injected into the drum 3 through the conduit 51 and the hopper 29. You. The specified amount is shown in Fig. 1.
As shown in FIG. 3, when the rubbing member 21 rotates, the spatula portion 21b is set so as to be appropriately buried in the laminate A fragment layer leveled on the inner peripheral surface of the sieve member 9.

Next, the fourth discharge port 35 _{4 is} operated by the shutter 45.
While it closed, and the member 21 rubbing through the rotary plate 13 by operating the electric motor 4 rotates in the direction of arrow R, operates the first electric blower 38 at _{a time.}

According to the rotation of the rubbing member 21, the radially outer surface f _{1 of} the spatula portion 21 b causes the laminate A debris group interposed between this and the inner peripheral surface of the sieve member 9 to the sieve member 9. At this time, the outer surface f ₁ is inclined radially outward toward the rear of the rotation direction R, and a gap 25 between the outer surface f ₁ and the inner peripheral surface of the sieve member 9 is rubbed. There because narrower as it goes in the direction of rotation R rear, outer side f ₁ with the rotation of the rubbing member 21 is to give the ironing to laminate a debris group, it is possible to increase the rubbing effect. As a result, the cushion material b of the laminate A fragment is immediately crushed and peeled off from the skin material a, but the skin material a is hardly crushed because the skin material a is relatively tough.

On the other hand, the radial inner surface f _{2 of} the spatula portion 21b
Is inclined inward in the radial direction toward the rear in the rotation direction R, so that the inner surface f ₂ scoops up the laminate A debris group with the rotation of the rubbing member 21, thereby effecting the debris group. Can be stirred. By the action of both side surfaces f ₁ and f ₂ of the rubbing member 21, it is possible to uniformly and efficiently separate the laminate A fragments into the skin material a and the cushion material b.

Moreover, since the edge 26 protruding inward of the sieve member 9 is formed on the entire periphery of the mesh 9a of the sieve member 9, the spatula portion 21b rubs the group of pieces of the laminate A against the sieve member 9. At this time, the edges 26 of the entire periphery of the mesh 9a scratch each fragment, so that the cushion material b can be more effectively crushed and peeled. In this case, in particular, the mesh 9a of the sieve member 9 is arranged in a zigzag shape along the rotation direction R of the rubbing member 21, and the edge interval S between the meshes 9a adjacent in the axial direction of the sieve member 9 is the mesh 9a. Since the inner diameter is set to be equal to or smaller than the inner diameter D, there is no area where the edge 26 of the mesh 9a does not exist when the inner peripheral surface of the sieve member 9 is viewed from the rotation direction R.
When the group of fragments of the laminate A is rubbed against the sieve member 9, each fragment is scratched by the edge 26 of the mesh 9a without leakage, and the cushioning material b can be more effectively crushed and peeled. .

The skin material a thus separated stays in the sieve member, and the cushion material b moves from the mesh 9a of the sieve member 9 to the separation chamber 17.

During this time, the first electric blower 38₁Depending on the operation of
Outside air from the hopper 29 from the pair of muffler ducts 61
The air flowing into the drum 3 through the outlet 32 is
Third outlet 35₁~ 35_ThreeOut of the first discharge pipe 36₁so
Merge into the first cyclone 37 ₁To the drum 3
The inside is always in good ventilation, so cushion material
Even if a large amount of heat is generated due to grinding and peeling of b, the above ventilation
Effectively cools the inside of the drum 3 and
Of laminate A caused by excessive temperature rise
It is possible to prevent the fusion of the members.

[0039] Moreover, the inside of the drum 3 air finished cooling, to the separation chamber 17 first cyclone 37 ₁ out of the first to third discharge ports 35 ₁ to 35 ₃ with the cushion member b powder shifted to since flows, contributes to the transfer of the first cyclone 37 ₁ of the cushion b powder. Eventually, only the skin material a remains in the sieve unit 8.

[0040] When the outside air is introduced to the first electric blower 38 ₁ or the second electric blower 38 in the drum 3 by the actuation of the _2, muffler duct 61 having a silencing effect on the outside-air intake port 32 of the hopper 29 is connected Therefore, intake noise generated due to the flow of air can be effectively reduced. In particular, since the inner surface of the sound deadening duct 61 is covered with the sound absorbing material 66, the sound deadening effect is further improved.

In the first cyclone 37 ₁ , the first discharge pipe 3
6 Reduce the air from ₁ to exhaust port 4 with filter 40
1 to the outside and the cushion material b powder
It is dropped from the stores to the first tank 43 _1.

First tank 43₁Cushion material b falls on
If it does not, the cushion material b is separated from the skin material a.
It means that it has been released.
Stop the dynamic motor 4 to stop the rotation of the rubbing member 21
With the first electric blower 38 ₁Stop the operation of. Next
Then, the shutter 45 is opened by the air cylinder 48, that is,
Fourth outlet 35_FourAnd then the second electric blower 38_Two
Activate Then, the second discharge from the drum 3
Tube 36_TwoThrough the second cyclone 37_TwoThe airflow heading for
The fragments of the skin material a generated and remaining in the sieve unit 8 are
Second cyclone 37 due to airflow_TwoTransported to

[0043] In this case, particularly, since the fourth outlet 35 ₄ is provided below the sieve member 9, skin material a debris accumulated in the sieve member 9 smoothly drop into the fourth outlet port 35 ₄ outside and, moreover its fall to be accelerated in the air flow by the operation of the second electric blower 38 _2, it is possible to perform the transfer of the skin material a debris from the drum 3 to the second cyclone 37 ₂ quickly. Then, in the second cyclone 37 _2, the second exhaust pipe 3
6 Decelerate the air from ₂ to exhaust port 4 with filter 40
Released from 1 to the outside, the skin material a debris is stored in ₂ second tank 43 is dropped from the outlet 42.

As described above, the crushing and peeling of the cushion material b can be effectively performed, and the cooling in the drum 3 is good.
The continuous operation and the ability to quickly discharge the skin material a fragments remaining in the drum 3 to the outside of the drum 3 mean that the skin material a fragments are discharged from the time when the laminate A fragments are charged into the drum 3. It greatly contributes to shortening the separation and separation time until
This can result in cost reduction.

The supply amount (weight per unit time) of the group of pieces of the laminate A supplied from the vibrating feeder 53 into the drum 3 via the conduit 51 and the hopper 29 is excessive or insufficient according to the processing capacity of the separation and separation apparatus 1. Is set in advance so as not to exist. The supply amount of the laminate A fragments from the vibration feeder 53 is checked periodically or as needed.
That is, the supply chute 57 is normally provided at the upper end of the hopper 29.
Is attached, and the stack A fragments falling from the tip of the conduit 51 are received by the supply chute 57 and supplied to the hopper 29. On the other hand, in order to check the supply amount of the laminate A fragment group from the vibration feeder 53, the bolt 58
And remove the supply chute 57 from the hopper 29,
Instead, the measuring chute 59 is put on the hopper 2 with bolts 58.
9

With the measuring chute 59 attached,
The stack A fragments that fall from the end of the conduit 51 connected to the vibration feeder 53 form a chute body 59 of the measuring chute 59.
a and is supplied into the tray 83 of the weighing scale 82 supported on the support table 81. Therefore, the weight of the laminate A fragment group supplied into the tray 83 per unit time is
, It is possible to immediately measure whether or not the supply amount of the laminate A fragment group from the vibration feeder 53 matches the set amount. Thus, the supply chute 5
7 and the measuring chute 59 can be easily and accurately measured by simply replacing the bolts 58 by loosening one bolt 58, so that the processing operation of the separation / separation apparatus 1 can be performed. It is possible to easily increase the number of measurements (measurement frequency) while minimizing the effect on the A, and to always keep the supply amount of the laminate A fragment group constant.

17 to 20 show a second embodiment of the present invention. FIG. 17 is a view corresponding to FIG.
17 is a sectional view taken along line 18-18 in FIG. 17, and FIG.
FIG. 20 is a sectional view taken along line -19 of FIG. 18, and FIG. 20 is a sectional view taken along line 20-20 of FIG. In the second to fifth embodiments described below, the sound deadening duct 61 of the first embodiment is replaced by a sound deadening duct 61 of another structure, and the structure of the other parts is the same. Therefore, the second to fifth embodiments also have the first embodiment.
The same operation and effect as the embodiment can be obtained.

In the first embodiment, the hopper 29 is provided with a pair of left and right outside air intakes 32. In the second embodiment, an arc-shaped outside air intake 32 'is provided at the lower center of the door 7.
Is provided. The silencing duct 61 is formed in a U-shape to avoid interference with the lower half of the hopper 29, and is fixed to the outer surface of the door 7 via a melt sheet 86 as a vibration isolator. The muffling duct 61 is composed of a first duct portion 87 farther from the door 7 and a second duct portion 88 closer to the door 7, and a pair of left and right entrance openings 61 ₁ below the first duct portion 87. Is formed, and the first duct portion 8 is formed.
7 the top and the top of the second duct portion 88 communicates with the left-right pair of the communication port 61 _3, further wherein the outside air outlet opening 61 ₂ formed in the lower portion of the second duct section 88 'screenshot 33' stretched over the It communicates with the intake 32 '.

According to the present embodiment, the outside air intake 32 '
When the outside air introduced into the drum 3 from the air passage passes through the sound deadening duct 61 covered with the sound absorbing material 66, the intake noise is reduced.
In particular, since the passage in the first duct portion 87 and the passage in the second duct portion 88 are bent in a maze, the intake noise can be further reduced. Further, since the sound deadening duct 61 is supported via the melt sheet 86, the vibration of the sound deadening duct 61 due to the flow of air can be prevented, and the generation of secondary noise can be prevented.

FIGS. 21 to 23 show a third embodiment of the present invention. FIG. 21 is a view corresponding to FIG.
21 is a sectional view taken along the line 22-22 in FIG. 21, and FIG.
FIG. 23 is a sectional view taken along line -23.

In the first embodiment, the hopper 29 is provided with a pair of left and right outside air intakes 32.
In the embodiment, one outside air inlet 3 is provided at the lower center of the door 7.
Although 2 'is provided, in the third embodiment, both outside air intakes 32 and 32' are provided at the same time.

The sound deadening duct 61 fixed to the door 7 via the melt sheet 86 has a three-layer structure including a first duct portion 89, a second duct portion 90, and a third duct portion 91 in order from a side far from the door 7. Have. With the first duct portion 89 comprises a pair of left and right inlet opening 61 ₁ in the upper end, communicates with the lower end of the second duct portion 90 through an arcuate communication port 61 ₄ provided at the lower end, further second duct section 90 the upper end communicates with the upper end of the third duct portion 91 via a pair of communication holes 61 _3.

[0053] The first duct portion 89 is fixed to the side of the hopper 29 at its intermediate portion, the outside air intake port 3 in which a pair of outlet opening 61 ₂ is provided in the hopper 29 provided therein
Connect to 2. The outlet opening 61 ₂ ′ provided at the lower end of the third duct portion 91 communicates with the arc-shaped outside air intake 32 ′ at the lower center of the door 7.

According to this embodiment, the hopper 29 and the door 7
Are provided with the outside air intakes 32 and 32 ', so that a sufficient amount of air can be supplied into the drum 3 without increasing the flow resistance. Also, the first duct section 8
Since the ninth to third duct portions 91 are bent in a more complicated maze shape than in the second embodiment, the noise reduction effect is further enhanced.

FIGS. 24 to 26 show a fourth embodiment of the present invention. FIG. 24 is a view corresponding to FIG.
24 is a sectional view taken along the line 25-25 in FIG. 24, and FIG.
It is a -26 sectional view.

In the fourth embodiment, the structure of the third embodiment is slightly simplified.
1 is omitted, and the second duct portion 90 is fixed to the door 7 via the melt sheet 86. Therefore, the outlet opening 61 ₂ ′ connected to the outside air intake 32 ′ provided in the door 7.
Are provided on the upper part of the second duct part 90 so as to be divided into right and left.

FIGS. 27 and 28 show a fifth embodiment of the present invention. FIG. 27 is a view corresponding to FIG. 9, and FIG. 28 is a sectional view taken along line 28--28 of FIG.

The fifth embodiment is different from the first embodiment (see FIGS. 1 to 16) in terms of the sound deadening duct 61 and the second embodiment (FIG. 17).
20), the outside air is introduced into the drum 3 from both the outside air intake 32 provided in the hopper 29 and the outside air intake 32 'provided in the door 7. And the air flow resistance can be reduced.

The present invention is not limited to the above embodiment, and various design changes can be made without departing from the scope of the gist.

For example, in the embodiment, the fragments of the synthetic resin laminate A are separated into the skin material a and the cushion material b by the rubbing member 21. The present invention can also be applied to a so-called pin mill that separates a group of material laminate A fragments into a skin material a and a cushion material b.

[0061]

As described above, according to the first aspect of the present invention, when the air in the drum is sucked by the suction means, the crushed pieces are discharged to the outside of the drum together with the air, and at the same time, are discharged from the outside air inlet. The inside of the drum is ventilated and cooled by the introduced outside air. The outside air passes through a silencing duct that covers the sound absorbing material on the inner surface and is introduced into the drum from the outside air intake,
The noise reduction effect of the noise reduction duct prevents generation of noise.

According to the second feature of the present invention, the noise reduction effect can be further enhanced by bending the noise reduction duct in a maze shape.

Further, according to the third feature of the present invention, since the sound deadening duct is fixed to the drum via the vibration damping material, it is possible to prevent the noise caused by the vibration of the sound deadening duct.

[Brief description of the drawings]

FIG. 1 is a side view of an apparatus for separating and sorting a synthetic resin material laminate.

FIG. 2 is an overall view of the separation / separation apparatus and its attached equipment.

FIG. 3 is a sectional view taken along line 3-3 in FIG. 1;

FIG. 4 is a sectional view taken along line 4-4 of FIG. 3;

FIG. 5 is an enlarged sectional view taken along line 5-5 of FIG. 1 (supply chute).

FIG. 6 is a view in the direction of arrows in FIG. 5;

FIG. 7 is a view (weighing chute) corresponding to FIG. 5;

FIG. 8 is a view in the direction of arrows in FIG. 7;

FIG. 9 is an enlarged view taken along line 9-9 of FIG. 3;

FIG. 10 is a sectional view taken along line 10-10 of FIG. 9;

FIG. 11 is an enlarged view of part 11 of FIG.

FIG. 12 is an enlarged view of a part 12 in FIG.

FIG. 13 is an enlarged view of a main part of FIG. 4;

FIG. 14 is a developed inner view of the sieve member.

FIG. 15 is a sectional view taken along line 15-15 of FIG. 14;

FIG. 16 is an explanatory diagram of a separation and separation process of a synthetic resin material laminate.

FIG. 17 is a view corresponding to FIG. 9 according to a second embodiment of the present invention.

18 is a sectional view taken along line 18-18 of FIG. 17;

FIG. 19 is a sectional view taken along the line 19-19 in FIG. 17;

FIG. 20 is a sectional view taken along the line 20-20 in FIG. 18;

FIG. 21 is a view corresponding to FIG. 9 according to a third embodiment of the present invention.

FIG. 22 is a sectional view taken along line 22-22 in FIG. 21;

FIG. 23 is a sectional view taken along line 23-23 of FIG. 21;

FIG. 24 is a view corresponding to FIG. 9 according to a fourth embodiment of the present invention.

FIG. 25 is a sectional view taken along line 25-25 of FIG. 24;

FIG. 26 is a sectional view taken along line 26-26 of FIG. 24;

FIG. 27 is a view corresponding to FIG. 9 according to a fifth embodiment of the present invention.

FIG. 28 is a sectional view taken along line 28-28 of FIG. 27;

[Explanation of symbols]

A ··· synthetic resin material laminate 3 ··· drum 21 ··· rubbing member (rotating member) 32 ··· outside air intake 32 '··· outside air intake 38 ₁ ··· first electric blower (suction) Means) 38 ₂ ··· Second electric blower (suction means) 61 ··· Sound deadening duct 66 ··· Sound absorbing material 86 ··· Mel sheet (vibration insulating material)

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat ゛ (Reference) B29K 105: 26

Claims (3)

[Claims] 1. A drum (3) and a rotating member which rotates in the drum (3) and finely crushes a group of fragments of the synthetic resin laminate (A) charged in the drum (3). 21)
And suction means (3) for sucking air in the drum (3).
8 ₁ , 38 ₂ ) and an external air intake (32, 32 ′) for introducing external air into the drum (3). A crushing device for a synthetic resin material laminate, wherein a silencing duct (61) covering the outside is connected to the outside air intake (32). 2. The apparatus for crushing a synthetic resin material laminate according to claim 1, wherein said muffle duct (61) is bent in a maze. 3. A drum (3) according to claim 1, wherein said sound deadening duct (61) is connected via a vibration isolator (86).
An apparatus for crushing synthetic resin laminates, characterized by being fixed to